CodePen Embed - A simple animation with CSS

<div class="element"></div>

.element {
  width: 100%;
  height: 100%;
  animation: pulse 5s infinite;
}

@keyframes pulse {
  0% {
    background-color: #001F3F;
  }
  100% {
    background-color: #FF4136;
  }
}

html,
body {
  height: 100%;
}

Run Pen

This Pen is owned by Tamal Dey on CodePen. It is a fork of this Pen.

See more by @tamal3053 on CodePen

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.